Check out Tranco [1], which uses Cisco Umbrella, Majestic and also now a list sourced from Farsight passive DNS [2]. They're "working on" adding Chrome UX and Cloudflare Radar.

There's also a list from Netcraft [3].

[1] https://tranco-list.eu/

[2] https://www.domaintools.com/resources/blog/mirror-mirror-on-...

[3] https://trends.netcraft.com/topsites

There's a list here: https://radar.cloudflare.com/domains

CommonCrawl / Open PageRank ?

https://www.domcop.com/top-10-million-websites

Here is an example of how to obtain a list of the top six million domains from Tranco and analyze their content with ClickHouse: https://github.com/ClickHouse/ClickHouse/issues/18842